Australia will invest A$4.6 billion (approximately $3.2 billion) to expand the Osborne Naval Shipyard in South Australia, Defence Minister Richard Marles announced. This funding, announced on July 25, 2026, is in addition to A$3.9 billion allocated earlier in February, aimed at preparing the shipyard for nuclear-powered submarine construction under the Aukus partnership with the US and UK.
The investment will support new infrastructure development and workforce training at the Osborne Naval Shipyard, which is currently building surface ships for the Australian navy. South Australia Premier Peter Malinauskas said the planned submarine construction facility will be ten times larger than the existing shipyard, reflecting the scale of the upgrade necessary to meet Aukus commitments.
This funding boost underscores Australia's strategic move to enhance its naval capabilities and domestic shipbuilding industry. The Aukus agreement, signed by Australia, the US, and the UK, focuses on sharing technology and building nuclear-powered submarines to strengthen security in the Indo-Pacific region. The Osborne Shipyard expansion is a critical component of this effort, marking one of the largest investments in Australian naval infrastructure in recent years.
The expanded shipyard will enable Australia to build nuclear-powered submarines domestically, a key objective of the Aukus pact. The government’s total investment in the shipyard now exceeds A$8 billion, positioning Australia as a significant player in advanced naval construction. The next phase includes detailed planning and construction, with workforce training programs already underway.